I have a working setup with a complex type of HeartStarter with a list of
AvailableTimes thanks to
Rini Angreani and Ben Caradoc-Davies. I can request the data over both WFS och
WMS.
As I have alot of features I tried to enable joining to get better performance
but when I did it broke.
The Heartstarter type is read from a view that joins the HeartStarter table
with another table containing the geometry and some attributes.
AvailableTime are read from a table and all data sits in the same Sql Server
database.
I enabled the GeoTools logging and found that the following SQL-query are
executed when a GetMap is requested:
SELECT "HjaertstartarIntegrationsVy"."Geometri".STAsBinary() as "Geometri" FROM
"HjaertstartarIntegrationsVy" INNER JOIN ( SELECT DISTINCT FROM
"HjaertstartarIntegrationsVy" WHERE "Geometri".F
ilter(geometry::STGeomFromText('POLYGON ((-1969834.7690915626
5498574.065957437, -1969834.7690915626 13090911.210410563, 5622502.375361563
13090911.210410563, 5622502.375361563 5498574.065957437, -1969834.7690915626
5498574.065957437))',
900913)) = 1 ) temp_alias_used_for_filter ON ( )
And it fails with the following exception:
java.lang.RuntimeException: java.io.IOException
at
org.geotools.data.store.ContentFeatureCollection.features(ContentFeatureCollection.java:241)
at
org.geotools.data.store.ContentFeatureCollection.features(ContentFeatureCollection.java:68)
at
org.geotools.data.complex.DataAccessMappingFeatureIterator.initialiseSourceFeatures(DataAccessMappingFeatureIterator.java:382)
at
org.geotools.data.complex.AbstractMappingFeatureIterator.<init>(AbstractMappingFeatureIterator.java:161)
at
org.geotools.data.complex.DataAccessMappingFeatureIterator.<init>(DataAccessMappingFeatureIterator.java:162)
at
org.geotools.data.complex.DataAccessMappingFeatureIterator.<init>(DataAccessMappingFeatureIterator.java:137)
at
org.geotools.data.complex.MappingFeatureIteratorFactory.getInstance(MappingFeatureIteratorFactory.java:178)
at
org.geotools.data.complex.MappingFeatureCollection.iterator(MappingFeatureCollection.java:264)
at
org.geotools.renderer.lite.StreamingRenderer.drawPlain(StreamingRenderer.java:2495)
at
org.geotools.renderer.lite.StreamingRenderer.processStylers(StreamingRenderer.java:2012)
at
org.geotools.renderer.lite.StreamingRenderer.paint(StreamingRenderer.java:813)
at
org.geoserver.wms.map.RenderedImageMapOutputFormat.produceMap(RenderedImageMapOutputFormat.java:490)
at
org.geoserver.wms.map.RenderedImageMapOutputFormat.produceMap(RenderedImageMapOutputFormat.java:254)
at
org.geoserver.wms.map.RenderedImageMapOutputFormat.produceMap(RenderedImageMapOutputFormat.java:126)
at org.geoserver.wms.GetMap.executeInternal(GetMap.java:465)
at org.geoserver.wms.GetMap.run(GetMap.java:201)
at org.geoserver.wms.GetMap.run(GetMap.java:111)
at
org.geoserver.wms.DefaultWebMapService.getMap(DefaultWebMapService.java:353)
at sun.reflect.GeneratedMethodAccessor165.invoke(Unknown Source)
....
at
org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:891)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690)
at java.lang.Thread.run(Unknown Source)
Caused by: java.io.IOException
at
org.geotools.jdbc.JoiningJDBCFeatureSource.getJoiningReaderInternal(JoiningJDBCFeatureSource.java:633)
at
org.geotools.jdbc.JoiningJDBCFeatureSource.getReaderInternal(JoiningJDBCFeatureSource.java:641)
at
org.geotools.data.store.ContentFeatureSource.getReader(ContentFeatureSource.java:562)
at
org.geotools.data.store.ContentFeatureCollection.features(ContentFeatureCollection.java:238)
... 116 more
Caused by: com.microsoft.sqlserver.jdbc.SQLServerException: Incorrect syntax
near the keyword 'FROM'.
at
com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDatabaseError(SQLServerException.java:216)
at
com.microsoft.sqlserver.jdbc.SQLServerStatement.getNextResult(SQLServerStatement.java:1515)
at
com.microsoft.sqlserver.jdbc.SQLServerStatement.doExecuteStatement(SQLServerStatement.java:792)
at
com.microsoft.sqlserver.jdbc.SQLServerStatement$StmtExecCmd.doExecute(SQLServerStatement.java:689)
at com.microsoft.sqlserver.jdbc.TDSCommand.execute(IOBuffer.java:5696)
at
com.microsoft.sqlserver.jdbc.SQLServerConnection.executeCommand(SQLServerConnection.java:1715)
at
com.microsoft.sqlserver.jdbc.SQLServerStatement.executeCommand(SQLServerStatement.java:180)
at
com.microsoft.sqlserver.jdbc.SQLServerStatement.executeStatement(SQLServerStatement.java:155)
at
com.microsoft.sqlserver.jdbc.SQLServerStatement.executeQuery(SQLServerStatement.java:616)
at
org.apache.commons.dbcp.DelegatingStatement.executeQuery(DelegatingStatement.java:208)
at
org.apache.commons.dbcp.DelegatingStatement.executeQuery(DelegatingStatement.java:208)
at
org.geotools.jdbc.JDBCFeatureReader.<init>(JDBCFeatureReader.java:140)
at
org.geotools.jdbc.JoiningJDBCFeatureSource.getJoiningReaderInternal(JoiningJDBCFeatureSource.java:627)
... 119 more
15 Jan 17:27:54 DEBUG [org.geotools.rendering] - Style cache hit ratio: NaN ,
hits 0, requests 0
15 Jan 17:27:54 ERROR [org.geoserver.ows] -
org.geoserver.platform.ServiceException: Rendering process failed.
It seems to be that Geoserver constructs a query that are not syntactically
correct.
When requesting a GetFeature with WFS a FeatureCollection is returned but the
content of the AvailableTimes are not included in the result (only a empty
element <heart:AvailableTimes> for those heartstarters that have one ore more
times associated).
Could this be because I'm using a view instead of a table?
Thank you
Lukas
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